| /* |
| * Copyright (c) 2018, Intel Corporation |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| * OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| */ |
| |
| #ifndef _LIBACPI_H |
| #define _LIBACPI_H |
| |
| #include "libfdt.h" |
| |
| #pragma pack(1) |
| typedef struct { |
| uint32_t Signature; /* ASCII Table identifier */ |
| uint32_t Length; /* Length of the table, including the header */ |
| uint8_t Revision; /* Revision of the structure */ |
| uint8_t Checksum; /* Sum of all fields must be 0 */ |
| uint8_t OemId[6]; /* ASCII OEM identifier */ |
| uint64_t OemTableId; /* ASCII OEM table identifier */ |
| uint32_t OemRevision; /* OEM supplied revision number */ |
| uint32_t CreatorId; /* Vendor ID of utility creator of the table */ |
| uint32_t CreatorRevision; /* Revision of utility creator of the table */ |
| } EFI_ACPI_DESCRIPTION_HEADER; |
| #pragma pack() |
| |
| /**********************************************************************/ |
| /* General functions */ |
| /**********************************************************************/ |
| #define acpi_get_header(acpi, field) \ |
| ((const EFI_ACPI_DESCRIPTION_HEADER *)(acpi))->field |
| #define acpi_signature(acpi) (acpi_get_header(acpi, Signature)) |
| #define acpi_length(acpi) (acpi_get_header(acpi, Length)) |
| |
| /* convert 2 bytes ASCII to uint16 */ |
| #define SIGNATURE_16(A, B) ((A) | (B << 8)) |
| /* convert 4 bytes ASCII to uint32 */ |
| #define SIGNATURE_32(A, B, C, D) ((SIGNATURE_16 (A, B)) | (SIGNATURE_16 (C, D) << 16)) |
| /* convert 8 bytes ASCII to uint64 */ |
| #define SIGNATURE_64(A, B, C, D, E, F, G, H) \ |
| (SIGNATURE_32 (A, B, C, D) | ((UINT64) (SIGNATURE_32 (E, F, G, H)) << 32)) |
| |
| #define SSDT_MAGIC (const unsigned)SIGNATURE_32('S', 'S', 'D', 'T') |
| #define DSDT_MAGIC (const unsigned)SIGNATURE_32('D', 'S', 'D', 'T') |
| |
| #define ACPI_TABLE_MAGIC 0x41435049 |
| |
| /* checksum byte by byte for acpi table */ |
| uint8_t acpi_csum(const void *base, int n); |
| |
| #endif /* ifndef _LIBACPI_H */ |